linux-kernel - Re: [crash, PATCH] Revert "drm/radeon/kms: move radeon KMS on/off switch out of staging."

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Date:	Thu, 4 Feb 2010 21:46:55 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Dave Airlie <airlied@...il.com>
Cc:	Dave Airlie <airlied@...ux.ie>, torvalds@...ux-foundation.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.sf.net
Subject: Re: [crash, PATCH] Revert "drm/radeon/kms: move radeon KMS on/off
 switch out of staging."


* Dave Airlie <airlied@...il.com> wrote:

> On Wed, Feb 3, 2010 at 1:44 AM, Ingo Molnar <mingo@...e.hu> wrote:
> >
> > * Dave Airlie <airlied@...ux.ie> wrote:
> >
> >> > It's the moving of radeom KMS out of staging after -rc6 that causes it,
> >> > because it brought it into the scope of my testing:
> >> >
> >> > ?f71d018: drm/radeon/kms: move radeon KMS on/off switch out of staging.
> >> >
> >> > So at least on this box it's clearly not ready for mainline enablement
> >> > yet. I've attached the revert patch further below.
> >>
> >> Its not enabled by default so reverting this doesn't make much sense.
> >
> > I boot allyesconfig kernels regularly, which testing method works fine 
> > with another 2000+ upstream drivers. (including the dozens of drivers 
> > which match to active hardware components on that box)
> 
> Okay this was something I wondered about, since these are *not* 
> allyesconfig .configs, I've generated some and CONFIG_FB_RADEON is always 
> on here, and you seem to not have that enabled (not that enabling it is a 
> good idea it is in fact a really bad idea).

These were random configs - the size doesnt match an allyesconfig, those are 
way bigger. My above comment related to the first crash, and to my argument 
that all other drivers are fine during bootup - and there's a lot of them.

> So do you have something you are running after allyesconfig to fix things? 
> or have you just got a config that is close enough to allyesconfig.
> 
> I'm building kernels with your .config now and boot testing them on the 
> full range of hardware I have/

Thanks. Is there something i can enable to get a better log for you to find 
out where (and why) it's hanging? It's still early during bootup so the box 
is not particularly debuggable - so i'm not sure i can get a task list dump, 
etc., unfortunately.

	Ingo
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